Tag Archives: alc1150

The ALC1150 chip on this motherboard fails to mix all channels played at it a simple,

pcm.!default{
type hw
card 1
}

Works but fails in mixing and does not take in SND_PCM_FORMAT_FLOAT inputs(may be because it is writing directly to the card’s buffer which doesn’t support float inputs). The fix is to use dmix but a lot of the dmix setups I used didn’t work at all, all ended in “can’t open output” errors. Put the following in /etc/asound.conf and it’ll work like a charm, no need for sound servers! It is a modified version of the conf found in http://wiki.gentoo.org/wiki/ALSA.